Your IP Address

216.73.216.204
City Columbus
Region Ohio
Country United States (US)
Coordinates 39.9612, -82.9988
Continent North America
Network WHOIS 216.73.216.0/22
ASN AS16509 (AMAZON-02 - Amazon.com, Inc., US)
Registry ARIN

API Usage

Use curl or any CLI HTTP client for machine-readable output:

$ curl ip.cow.org

Looking Up Another Address

Append any IPv4 or IPv6 address to the path. Every output format below works the same way.

$ curl ip.cow.org/142.254.87.24
$ curl ip.cow.org/2001:4860:4860::8888/json

Output Formats

Every format answers to a path segment or a query flag. The path form needs no quoting in a shell; ?j does, in zsh.

Path Query Description
/json  /j ?j JSON output (pretty-printed)
/compact  /d ?d JSON output (compact)
/xml  /x ?x XML output
/shell  /s ?s Shell-friendly key="value" format
/plain  /p ?p Human-readable with label
(none) (none) Plain IP address only

A format on the path follows an address as well, so ip.cow.org/1.1.1.1/xml describes 1.1.1.1 in XML. A query flag wins where both are given.

Examples

$ curl ip.cow.org # Just the IP
$ curl ip.cow.org/json # JSON with GeoIP
$ curl ip.cow.org/xml # XML format
$ eval "$(curl -s ip.cow.org/shell)" # Shell variables
$ curl ip.cow.org/1.1.1.1 # Look up a specific address
$ curl ip.cow.org/1.1.1.1/json # ...in JSON

Tools

IPv4/6 Subnet Calculator — Visual subnet splitting and CIDR calculations

IP geolocation by DB-IP  |  Network data by Team Cymru  |  About the author
va8473fd (2026-08-25_03:55:17)